<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>续借图书</title>
    <script type="text/javascript" src="jquery-3.3.1.min.js"></script>
</head>

<body>

<ul>
    <li><a class="active" href="Student.html">返回上一页</a></li>
    <li><a href="#">续借图书</a></li>
</ul>
<div class="search">
    <input type="text" id="bookId" placeholder="输入图书id">
    <input type="text" id="grade" placeholder="输入评分">
    <button id="sure"><i>搜索</i></button>
</div>
</body>

</html>

<style>
    body {
        margin: 0px;
        padding: 0px;
        font-family: sans-serif;
        /*设置字体为sans-serif*/
        background-image: url(images/library.jpg);
        background-size: 100% 100%;
        background-attachment: fixed;
        /*背景图片尺寸为覆盖cover*/
    }

    ul {
        list-style-type: none;
        margin: 0;
        padding: 0;
        overflow: hidden;
        background-color: #333;
    }

    li {
        float: left;
    }

    li a,
    .dropbtn {
        display: inline-block;
        color: white;
        text-align: center;
        padding: 14px 16px;
        text-decoration: none;
    }

    li a:hover,
    .user:hover,
    .dropdown:hover {
        background-color: #111;
        /*鼠标移动时背景颜色*/
    }

    #borrowId {
        background-image: url('images/searchicon.png');
        /* 搜索按钮 */
        background-position: 5px 1px;
        /* 定位搜索按钮 */
        background-repeat: no-repeat;
        /* 不重复图片*/
        width: 100%;
        font-size: 16px;
        /* 加大字体 */
        padding: 12px 40px 12px 40px;
        border: 1px solid #ddd;
        margin-bottom: 12px;
    }

    .search {
        width: 30%;
        margin: 100px auto;
        /*搜索栏的位置*/
        display: flex;
        /**/
    }

    .search input {
        float: left;
        flex: 4;
        height: 30px;
        outline: none;
        border: 1px solid white;
        box-sizing: border-box;
        padding-left: 10px;
    }

    .search button {
        float: right;
        flex: 1;
        height: 30px;
        background-color: rgb(63, 224, 245);
        color: white;
        border-style: none;
        outline: none;
    }

    .search button i {
        font-style: normal;
    }

    .search button:hover {
        font-size: 20px;
        background-color: rgb(63, 224, 245);
    }
</style>
<script>
    $("#sure").click(function () {
        var borrowGrade = {
            bookId:$("#bookId").val(),
            grade:$("#grade").val()
        }
        $.ajax({
            url: "http://localhost:8080/bookware/grade",
            type: "post",
            dataType: 'json',
            data: JSON.stringify(borrowGrade),
            contentType: "application/json",
            success: function (res) {
                alert(res.msg)
            },
            error: function (res) {
                alert("JSON数据获取失败，请联系管理员！");
            }
        })
    })
</script>